SocketCluster

About

SocketCluster is ranked #19 of 39 in message broker software on Inferse. It runs on Android, API, iOS, Linux, Self-hosted, Web. There is a free plan.

Compared on message broker software

Free plan

Yessocketcluster.io

Deployment model

self_hostedsocketcluster.io

Ordering guarantees

per_queuesocketcluster.io

Supported protocols

HTTP, WebSocketsocketcluster.io

Facts

Purpose

SocketCluster is an HTTP and WebSockets server environment for building scalable, multi-process real-time systems such as pub/sub and RPC applications.socketcluster.io · 8 Oct 2026

Use cases

The maker describes SocketCluster as suitable for chat systems and multiplayer online games.socketcluster.io · 8 Oct 2026

Scaling

It is designed to scale vertically across processes and horizontally across machines or instances.socketcluster.io · 8 Oct 2026

Channels

The maker says pub/sub channels are lightweight, automatically cleaned up when unused, and can support millions of unique channels.socketcluster.io · 8 Oct 2026

Message handling

Asynchronous operations in socket streams preserve message processing order, and the server exposes methods to monitor inbound and outbound backpressure.socketcluster.io · 8 Oct 2026

Authentication

JWT is the default authentication mechanism, with HTTP-based and WebSocket-based flows supported.socketcluster.io · 8 Oct 2026

Access control

Middleware streams can block connections and socket actions, and can delay or transform packets sent between client and server.socketcluster.io · 8 Oct 2026

Reconnect behavior

When a client loses its connection, its channels enter a pending state and automatically resubscribe after reconnection.socketcluster.io · 8 Oct 2026

Integrations

The documentation describes running SocketCluster with frameworks such as Express and deploying it on Kubernetes inside Docker containers.socketcluster.io · 8 Oct 2026

Client libraries

The maker’s site lists JavaScript, Java/Android, Python, .NET, Go, Swift/iOS, Ruby, and Unity clients.socketcluster.io · 8 Oct 2026

Deployment

The CLI provides Kubernetes shortcut commands, and the maker provides Kubernetes deployment YAML files.socketcluster.io · 8 Oct 2026

Requirements

The getting-started guide lists Node.js v10 as a requirement and Docker CLI and kubectl as optional dependencies.socketcluster.io · 8 Oct 2026

License

The SocketCluster repository states that the project is distributed under the MIT License.github.com · 8 Oct 2026

Support

The maker’s site links to community chat on Gitter and provides documentation and an API reference.socketcluster.io · 8 Oct 2026

Where it ranks on Inferse

• Best Message Broker Software in 2026#19 of 39

Sources

• socketcluster.io/docs/introduction/· checked 8 Oct 2026
• socketcluster.io· checked 8 Oct 2026
• socketcluster.io/docs/authentication/· checked 8 Oct 2026
• socketcluster.io/docs/getting-started/· checked 8 Oct 2026
• github.com/SocketCluster/socketcluster· checked 8 Oct 2026